First full day of summer!

Posted on Jun-21-2017 at 18:20:00

Like it or not, summer is officially here. As you likely know, the tilt of our Earth causes seasons. As the Earth revolves around the sun, the sun's rays are directly over different locations throughout the year. So what does this mean for Phoenix?

The summer solstice occurred Tuesday (June 20th) at exactly 9:24 pm. The summer solstice is when the sun is directly over the Tropic of Cancer, located at a latitude of 23.5 degrees north.

On the summer solstice, the days in the Northern Hemisphere are the longest, with Phoenix coming in with a day length of 14 hours and 22 minutes. So some good news, the days from this point forward going through summer will be shorter!

This is also the time when the sun is highest in the sky. Here in Phoenix, the sun reaches a max sun angle (angle from the horizon to the sun) of 80 degrees on the summer solstice.

After the summer solstice, the sun starts its journey back to the south until it reaches the Tropic of Capricorn, located at a latitude of 23.5 degrees south. This occurs on the winter solstice, which will happen at exactly 9:28 am on December 21st.

On the winter solstice, the days in the Northern Hemisphere are at their shortest with Phoenix having a total of 9 hours and 56 minutes of daylight. The sun angle on the winter solstice is also much lower coming in at just 34 degrees.

This process repeats itself each and every year. So what season do you like best? For me... it has to be winter, especially when talking about temperature!